Bevel.



N. B. MCGRATH.

Patented Dec 15,1914.

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NICHOLAS B. MGGRATH, 0F SOUTHINGTON, CONNECTICUT, ASSIGNOR OF ONE-HALFT0 JAMES H. PRATT, 0F SOUTHINGTON, CONNECTICUT.

'.BEVEL.

Specication of Letters Patent.

Patented Dec. 15, 1914.

Application led July 30, 1914. Serial No. 854,034.

To all whom. it' may concern:

Be it known that I, NICHOLAS B. Mc- Gnarrr, a citizen of the UnitedStates, residing at Southingtomin the county of Hartford and State ofConnecticut, have invented a new and useful Improvement in Bevels; and ldo hereby declare the following, when taken in connection with theaccompanying drawings and the characters of reference marked thereon, tobe a full, clear, and exact description of the same, and which saiddrawings constitute part of this application, and represent, in-

Figure 1 a plan view of a bevel constructed in accordance with myinvention. Fig. 2 a side view of the same. Fig. 3 a sectional viewshowing the blade members in the locked position with the lever shown inits open position in broken lines. Fig. t a plan view of the handleportion with the blade, bloclrfand lever removed. Fig. 5 a sectionalview! n the line a-b of Fig. 1. Fig. 6 an unde J ide view of the block,removed. Fig. 7 an d view of the lever, detached.

ThY invention relates to an improvement in'bevels in which the blade isadjustably mounted in a handle, the object being to provide simple andeffective means for locking the blade in various positions ofadjustment, which means will not interfere with the use of theimplement; and the invention consists Vin the construction hereinafterdescribed and particularly recited in the claims.

rlhe blade 2 is of usual construction provided with a slot 3 Jfor theclearance of a screw stud et which extends through the upper portion 5of the handle into engagement with the under portion 6 in the usual way.ln my improved construction the head 7 of the stud is seated in a block8 one side of which is cut away to form a notch 9 for the Y reception ofthe cam head end 10 of a lever 11. rllhe block 8 is locatedin a chamber12 so as to be flush with the outer face of the upper portion 5 of thehandle, and this chamber 12 connects by a groove 13 with a recess 14kwhich recess forms a chamber for the reception of the finger-piece 15 orend of the lever 11, and where the groove 13 enters the chamber 12 is adepression 16 for the enlarged cam head 10 of the lever 11, the leverturning on this head as a fulcrum the tendency of the movement being tocrowd the upper and under members together and clamp the blade betweenthem. When the lever is in the locked position as shown in Fig. 3 of thedrawings, the finger-piece 15 is substantially Hush with the outersurface of the upper portion 5 of the handle Jfrom which it may beconveniently moved as shown in broken lines in Fig. 3 so as to turn thehead to relieve pressure on the blade.

An objection to many forms of bevels is that the adjustment is made atthe rear end of the handle and usually by a screw the head of which isliable to interfere with the use of the bevel. In my improved clampingdevice the bevel may lie ilat upon the work, and the locking device isalways in convenient position for use.

I claim 1. A bevel comprising a handle having upper and under members, ablade adapted to slide between the members, the upper member beingformed with a recess, a block located in said recess, a screw extendingthrough said block and through the upper member into engagement with theunder member, the said block being cut away at one side the said uppermember being formed with a channel and with a clearance opening intowhich the channel opens, andV a lever located in said channel, the headof the lever engaging with said block whereby when the lever is forcedagainst the upper member the two members will be crowded together.

2. A bevel comprising a handle having upper and under members, a bladeextending between the members, the upper member being formed with achamber and with a clearance opening, and with a groove connecting thechamber and clearance opening, said upper member being also providedwith a depression at the junction of the groove and chamber, a blocklocated in said chamber and cut away on one side over said depression, ascrew passing through said block and upper member and into engagementWith the under member, e lever formed With a head located in saiddepression and adapted to engage with said block, said lever extendinginto said groove and formed with Aa linger-piece adapted to enter seidClearance opening.

In testimony whereof, I have signed this specification in the presenceof two Subsoribmg Witnesses.

NICHOLAS B. MCGRATH.

, Witnesses:

RICHARD ELLIorr, THOMAS F. WELCH.

fopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

